update

memory.README.md

@@ -14,10 +14,18 @@ name	question	answer
 - `question` is displayed on shell startup.
 - `answer` is displayed by running `answerpls` in that terminal.
 
+Run `refreshpls` to advance to another question before the next calendar day.
+`answerpls` then displays the answer to the newly shown question. Refreshing is
+persisted under `$XDG_STATE_HOME/bash` (or `~/.local/state/bash` when that
+variable is unset), so new terminals show the refreshed question for the rest
+of that calendar day. The normal daily selection takes over again the following
+day.
+
 The file has no header or comments. Empty fields, duplicate names and malformed
 rows are errors.
 
-Bash selects one entry deterministically from the local calendar date. Every
-terminal opened on the same day therefore shows the same question without
-requiring a state file. Editing the bank may change which question maps to a
-given date.
+Bash works through a persisted, randomly shuffled deck. Each question appears
+once before the deck is shuffled again, and a new deck does not begin with the
+question that ended the previous one. The deck advances on a new calendar day
+or when `refreshpls` is run, while every terminal opened on the same day shows
+the current persisted question. Editing the bank starts a newly shuffled deck.